Third accumulation array, T, of the natural number array A000027, by antidiagonals.

Terms

a(0) =1a(1) =5a(2) =6a(3) =16a(4) =29a(5) =21a(6) =41a(7) =89a(8) =99a(9) =56a(10) =91a(11) =219a(12) =295a(13) =259a(14) =126a(15) =182a(16) =469a(17) =705a(18) =755a(19) =574a(20) =252a(21) =336a(22) =910a(23) =1470a(24) =1765a(25) =1645a(26) =1134a(27) =462a(28) =582a(29) =1638